Metallic roofing.



kto overlap, and to secure. t

WILLIAM M. GARVIN, OF BLACKVILLE, SOUTH CAROLINA.

METALLIC RooFING.

Application filed April 24, 1907.

Specification of Letters Patent.

Patented June 30, 1908.

Serial No. 369,944.

T o all whom it 'may concern:

Be it known that l, l/VILLIAM M. GARVIN, a citizen of the United States, residing at Blackville, in the county of Barnwell and State of South Carolina, have invented certain new and useful Improvements in Metallic Roofing, of which the following is a specification.

My invention relates to metallic roofing, and more particularly to that class of roofing which is formed into sheets of given size at a` factory, and provided with edges so crimped or otherwise formed that the sheets may be applied to the roof by unskilled labor, and without the use of special tools. Heretofore it has been common to provide such sheets of roofing with U- oi' V-crim ed edges, adapted fiem to the sheeting by means of nails, driven through such crimped edges, or of cleats, overlying such edges. But it has been found that wherever the cleats are thus partl ex osed to the weather, or where the roofing s cets are pei'- v forated by nails, rapid deterioration of the roof, due to oxidation of the fastenings, takes place.

It is therefore one object of the present invention to provide a roofing sheet having its edges so shaped that two adjacent edges will interlock so as to form a substantially' watertight joint, without subsequent crimping.

A further object of th'e invention is to provide means for securing the roofing to the sheeting without puncturing the roofing sheet.

A further object is to provide a cleat for 'fastening the roofing sheets which shall lie wholly underneath the same and be protected from the weather.

`With the above and other objects in View, the invention consists of the construction hereinafter described, and illustrated in the accompanying drawingskin whichz'jt Figure l is a perspective view showing a fragment of my imj'irovod roofing sheet to getzfier with a cleat for holding the saine in position.. Fig. 2 is an end view showing the method of placing two shoots together so as to interlock. Fig. Il is a sectional view on an nlarged scale, showing the two sheets in position so as to form the seam.

ieferiing to the drawings in detail, l reprrsents ny improved roofing sheet, which niav be of any suitable width, and of a length which may be r1 :idily handled. This sheet 'l is formed at il j edges with upstanding flanges, for forming an interlocking seam. One flange consists of a slightly inclined substantially vertical portion 2, bent over at its top, as at 3, and merging into a depending vertical portion 4. T his,'in turn, is folded at its lower edge 5, and bent inwardly and upwardly to form a vertical upstanding portion 6. This flange conforms in shape to what I shall refer to as an inverted U-crimp with inturned edge. The other edge of the roofing sheet is provided with an upstanding flange foi-mcd into what I shall term a re verse or double-V-crimp. This flange consists of three substantially flat portions adjoining eaeh other, the lower portion 7 rising at an acute' angle from the sheet 1. The upper portion 9 is substantially arallel with 7, and the middle ortion 8 fies between them, making an o tuse angle with both, and forming the ridges 11 and 12. The rooting sheet 1, and each of the ortions 7, 8, and 9 of the flange, all lie in di erent planes. The roofing sheets are held inv osition by means of cleats, such as 20` T ese consist of angular sheet metal clips, having a base portion provided with holes 21, for the reception of nails 25, or the like, and an upstanding portion 22, folded over at its top 23, to form a depending flange 24.

Fig. 2 shows the method of assembling the sheets into position on the roof. The upper portion?) of the flange of one sheet, is slipped sidewisir under the U-crimp 5, of the sheet previously laid, and then by bearing down on the outer edge of the second sheet, as shown by the arrow, it pivots and slides about the corner 10, and such movement causes the portion 8 to enter under the edge 5 with a wcdving action, and when the second sheet has been rocked down so as to lie flat against the sheeting, the reverse V-criinp will oc cupy the position shown in Fig. 8. Before placing the second sheet in position however, the first sheet is secured in place by means of the cleats 20. These cleats are preferably formed und assembled in place when the sheet is formed. They lie within the inverted Ueci'im'), the )art 23 nesting with 3 and are slidably hclif therein, so that they ma 1 be slip v)ed along lengthwise the sheet, and adjuster to any desired position before being nailed down. ln some cases,' as for instance, where the sheets are short, it may he desirable to have the cleats separate, andl slip them endwisc under the ilange, 'as needed. 'lhese cleats may be freely nailed.

to the sheeting before the next sheet is laid, and it is obvious that when the next sheet is brought to its iinalv position, shown in Fig. 3,' it will overlie suoli nail heads, and the cleats will he entirely protected from the Weather. lt will be noted that when first secured in position they engage the roofing sheets only on the inside of the upturned portion of the U-shapd flange. The next sheet is then inserted, as shown in Fig. 2, and when in linal position, as in Fig. 3 it will be seen that the cleat also embraces the V-crinip ot the sheet which it underlies. The slidahle arrangement of cleats above described, permits of the ready expansion and contraction of the rooting sheets, due to changes in ten'iperature, wit-hout in any Way tending` to loosen their 'lastenings .From an inspection of Fig. 3 it will be seen that the interlocking flanges engage or contact With each otherat a plurality ol points. rlhe bend ."5 engages tightly against the portion S of the double-V-oriinp, while edge G engages the portion 9, and the edge l2 bites against the cleats also.

The portion 7, extending as it does at an acute angle to the sheet l, serves to dellect the Water array l'ioni the joint 5in-S. This joint lorn'is a substantially enter-tight seal, but should ani.'Y water leali .mit it still would have to wort; past the joint lornied by the edge tl, and the overhanging llange 9 would dellect it into trough 5, lj'roin the lower end ol: which it can escape.

lt will be seen that fl have provided a ver)T siinple and eilicient system ol rooting iifhieli `may be placed in position very readily without special tools, and which ornis a tight seani without subsequent crimping, and it is thought the niinierous advantages of the saine iiill 'be readily appreciated by those skilled in the art.

l/Vtat l claiin is l. A sheet el nietel rooting provided at one edge with an opstanding flange consisting of a plurality ol 'tl-erinips lacing alternatelyv to the right and lett.

2. A sheet of inetal rooting provided at one edge with an iipstaiiding flange, said llange being reverselv criniped so as to torni a pluol ridgy facing alternately in opposite Il.. il. sheet ol inetii rooting provided at one edge with a llange composed ot an upstandingr portion forming an acute angle with `the.

sheet, an intermediate portion, reifersely bent, and :in upper portion substr-.nliallj.v parallel to the lirst.

l. edge with :in upstandi: llangc comprising :i pluralitlv ol reversely lorined crinips, 'lacing alternatelj.Y to the right and lett, and p ovidod at the other edge with an inverted itl-shaped llange.

5. ln a metal root, rooling sheets l'ornied sheet ol" metal rooting provided it one -interli l in the presence ol" two ivitn f J ."llth inverted lol-shaped llanges having niturned portions, and cleats, shaped to under-A lie one sheet, and engage the inturned iiange ot the next preceding sheet, all olt the parts it)7 of angular ridges, said ili` shaped that they may be ro into engagement, and when so engaged, U et the lirst llange will. embrace the ridb oi: the second.

7. ln a inetal roof, a roo'hng sheet formed with an inverted, U-sliaped llange along one edge, and a second .rooting sheet provided with an opstanding flange crimped in a dif rection parallel ivithgthe root, so as to to in a pluralityofangulai ridges adapted to interlock with said lirst ilange with .i'edging action, and the saine on both sides of the 8. ln metallic reeling, rooting vided with i-shaped and u, s uniting crinipcd edge llanges, the tl-crimp ot one sheet being tornicd parallel 'vrilfli 'the root, and. adapted to enter the lj oi" the nent with s Wedging action, and engl herewith plurality of points.

9. .ln a nietal root, rooi at one edge with inve having inturned portions, and at with i'langes comprising a pluralit) oi rei i'ersely fornied J-eriniis, said Lland llanges adapted to interlock at a pluA ality ol points, and cleats formed to ii'iderlie the sheets and engage both the nturned por ol' one flange and the upper edge oit the other.

1G. ln a nietal roel", a rooting sh i..

-rovided at one edge verted U-sliiapcd llange, h p portion and a cleat soaped 'to underlie said l' ange ii'ithout siiosequfnt Crimping, andslideb f secured th 'ii ll. In a metal rooi", roo'lin ready lor laying, and provi ivitli :in upstandii g, angular il. the other with a curved, or cleats underlying 1' engage the inside the const notion he ot two adjacent slice '7 rise into enea@ yli toolii sequent crimping.

ln testimony vwhereof, l a

fill lliiifiiixl 

